FOOD PROCESSING AND PRESERVATION
FERMENTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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alcoholic fermentation
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lactic acid fermentation
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the ETC
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the Krebs cycle
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Detailed explanation-1: -Fermentation follows glycolysis in the absence of oxygen. Alcoholic fermentation produces ethanol, carbon dioxide, and NAD+. Lactic acid fermentation produces lactic acid (lactate) and NAD+. The NAD+ cycles back to allow glycolysis to continue so more ATP is made.
Detailed explanation-2: -If enough oxygen is not present to undergo aerobic respiration, pyruvate will undergo lactic acid fermentation.
Detailed explanation-3: -4: Lactic acid fermentation makes ATP in the absence of oxygen by converting glucose to lactic acid (through a pyruvate intermediate). Making lactic acid from pyruvate oxidizes NADH, regenerating NAD+ so that glycolysis can continue to make more ATP rapidly.
Detailed explanation-4: -In the absence of oxygen, fermentation must happen; otherwise, glycolysis will stop. This is regardless of whether it is lactic acid fermentation or alcohol fermentation that is used.